# CVE-2017-6884

A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

- Page: https://www.vulneraibility.com/cve/CVE-2017-6884
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2023-09-18; CISA due date 2023-10-09; known ransomware use
- EPSS: 32.98% (percentile 98.4)
- Public exploit code: 1 on Exploit-DB (first 2017-04-02)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2026-08-04)
- Weakness: CWE-78
- Published: 2017-04-06

## Affected

- zyxel:emg2926_firmware

## References

- [exploit] https://www.exploit-db.com/exploits/41782/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.